This paper will provide you with a broad overview of the principles and applications of environmental geochemistry across multiple disciplines. The topics covered include the diverse uses of geochemistry in understanding Earth’s geochemical reservoirs, conditions on early Earth, geothermal systems, chemical weathering, archeology and forensics, life histories, carbon sequestration/underground hydrogen storage, dendrochemistry, and medical geochemistry (plus additional topics based on student interest). The instructor will deliver introductory material around each week’s topic, however this is a strongly discussion-based course and it is imperative that students read all assigned readings prior to class, attend, and participate in discussions. The laboratory exercises focus on analytical geochemistry, complimenting the topical lectures. In the labs you will develop an understanding of which analytical techniques are best suited for your research, as well as providing you practical experience + theory in collecting and evaluating geochemical results from a wide range of materials.